Connecter



y 1934- F. w.. TRONOLONE Q 1,959,310

CONNECTER Filed Feb. 17, 1935 mi Wfvvabw Patented May 15, 1934 UNITEDSTATES PATENT OFFICE V CONNECTER I Frank W. Tronolone, Buffalo, N. Y.,assignor to Thomas Construction Corporation,

Buffalo,

N. Y., a corporation of New York Application February 17, 1933, SerialNo. 657,265

Claims. (01. 179-259) This invention relates to certain new and usefulimprovements in connecters and particularly to the typefor-connectingcables or conductors to the terminals or posts of storage batteries.

The primary object of the invention is to provide a battery terminalconnecter embodying a sleeve to be placed in. enclosing relation to abattery terminal post combined with a clamping ing screw from the frame,but to prevent de- 7 connecter. I P With the above and other objects inview that will become apparent as the nature of the invention is betterunderstood, the same consists in the novel form, combination andarrangement of parts hereinafter more fully described, shown in theaccompanying drawing and claimed.

In the drawing:-

Figure 1 is a top plan view of a battery terminal connecter constructedin accordance with the present invention showing the calmping screw inits fully retracted inoperative position and disposed to preventseparation of the clamping screw from the frame of the connecter;

Figure 2 is a side elevational view of the connecter; Figure '3 is abottom plan view of the connecter;

Figure 4 is an end elevational view of the conductor receiving endof theconnecter;

Figure 5 is an end elevational view of the end of the connecter carryingthe clamping screw;-

Figure 6 is a top plan view, similar 'to Figure 1 showingflthe clampingscrew fully projected 'necter;

of a.conductor or cable that is secured to the to its forward positionand located to permit separation thereof from the frame of theconnecter;

Figure 7 shows top plan views of the connecter and clamping screwseparated;

Figure 8 is a longitudinal sectional view taken on line 8-8 of Figure 1;t

Figure 9 is a cross-sectional view taken on line 9--9 of Figure 2, withthe swivelled clamping plate carried by the screw provided with cornerspurs for biting engagement with the battery post;

Figure 10 is a cross-sectional view taken on .line 10-10 of Figure 2,showing the key hole' slot in an end wall of the frame for cooperationwith a keyor flattened portion on the clamping screw adjacent the'he adpermitting removal of the clamping screw from the frame of the 'con-Figure 11 is a cross-sectional view similarto Figure 9 showing thesubstitution of clamping ribs for spurs: and

Figure 12 is-a topplan view showing a chromium plated lead or othersleeve upon the end of a conductor inserted in the tube portion of theconnecter.

Referring more in detail to the accompanying drawing, there-isillustrated a battery terminal connecter 15 including a cylindricalsleeve 16 receivable upon the terminal or post P of the battery B asshown in Figure 2. A cable or conductor receiving tube17 is carried byone side of the sleeve 16 by means of a connecting neck 18 and said tubeis longitudinally split at its outer side as at 19 to permit thepositioning of a conductor end -therein and relative movements betweenthe split parts of the tube 1'7 for clamping engagement with theconductor.

The side of the sleeve 16 opposite the tube 1'7 is open and at the openside of the sleeve there is provided a frame including .parallel sidewalls 20; a bottom wall 21, an outer end wall 22 with oppositelydisposed inwardly directed ribs 23 carried by the side walls 20 inspaced relation to the outer end wall 22 providing a rectangular 1pocket 24.

The clamping screw 25 of the connecter is interlockingly and removablyassociated with the frame portion, being provided upon one end with apolygonal head 26 with the shank of the screw adjacent the headunthreaded and oppositely flattened as at 27 to provide a reduced keyportion. A clamping plate28 having an arcuate clamping face is swivelledas at 29 upon the threaded end of the screw 25 and said screw passes.

. key portion 27 of the screw and is placed over the open side of theconnecter frame, the nut 30 registering with the rectangular pocket 24and the end wall 22 of the frame provided with.

an upper edge opening key slot, 31 through which t e key portion 27 ofthe clamping screw 25 When the clamping screw is e ged with the frame ofthe connecter, the nut confined within the pocket 24 while the c mpingplate 28 is located betweeen the ribs 23 and closed side of the sleeve16 as illustrated in Figure 6. Upon rotating the screw 25, the samethreads through the nut 30 that is prevented from rotation and displacesthe key portion 27 of the clamping screw with respect to the key slot 31in..the end wall 22 of the frame, thereby moving the clamping plate 28in a direction toward the open side of the sleeve 16 to the positionshown in Figure 1 and at which time the same may be placed upon thebattery terminal post P as shown in Figure 2. The key slot 31 in the endwall of the'frame maintains tery terminal post for anchoring theconnecter thereto, and in lieu of said spurs 28a, the clampingplate 28as shown in Figure 11 is provided with ribs 28b for biting engagementwith the battery terminal post. The pockets or crevices resulting fromthe assembly of the connecter frame and clamping screw may receivegrease or lubricant which acts to eliminate corrosionaround the batterypost.

In the form of invention illustrated in Figure 12, the connecter 15ais.constructed similarly to the connecter 15 shown in Figs. 1 to 11 withthe exception that the closed side of the connecter opposite the frameportion thereof is open and the sleeve portion 16a carries atransversely extending tube portion 17a that receives a chromiumplated-lead or other tubing 32 se-.-' cured to one end of the conductor33. The tubing 32 extends through the outer open side of the sleeve 16afor direct engagement by'the clamping ates 280, the outer side of thetubing 17a carrying inwardly pressed transversely extending ridges orbeads 34 for binding engagement with the chromium plated lead or othertubing 32. g

From the above detailed description of the invention, it is believedthat the construction and operation thereof will at once be apparent andwhile there are herein shown and described the preferred embodiments ofthe invention, it is nevertheless to be understood. that minor changesmay be made therein without departing from the spirit and scope of theinvention as claimed.

I claimz- 1. In a battery terminal connecter, a sleeve has a rectangularnut 30 threaded thereon and for mounting on the post of a battery, a.conductor receiving tube at one side of the sleeve, a clamping screwremovably carried by the other end of the sleeve and an interlockingconnection between the sleeve ,and clamping screw preventing separationvof the screw fromthe sleeve when the screw is moved to clamping positionas in service. and retracted position for separation of the sleeve fromthe post, the interlocking connection includinga keyhole slot in a wallof the sleeve and a cooperating keyportion on the clamping screwadjacent its outer headed end.

keyhole slot in a wall of the sleeve and a cooper-' ating key portion onthe clamping screw, a feed nut for the screw permanently carriedther'eby and walls within the sleeve providing a separable interfittingconnection between the nut and sleeve with the nut respectivelyfrictionally engaged with the walls when the screw is at its limit ofmovements in opposite directions.

3. In a battery terminalconnecter, a sleeve .for mounting on theterminal post, of a battery,

a conductor receiving tube at one side of the sleeve, a frame at theother side of the sleeve having an end wall with a key-hole shapedopening therein and an adjacent rectangular pocket, a clamping screwhaving a key portion at its headed end receivable in the endwallopening, a nut threaded. on the screw receivable in. therectangular. pocket, and the key portion of the clamping screw beingdisplaced with re-, spect to the key hole opening when the connecter isin service position and out of use when the clamping screw is maintainedin assembled relation to the connecter. I

4. .In a battery terminal connecter, wherein a sleeve is adapted formounting on the post of a battery, and wherein a bolt, nut and clampplate assembly is removably attached to the sleeve, means forming aseparable interlocking connection between the sleeve and assemblyincluding a key-hole slot in thesleeve and a cooperating key portionadjacent the headed end of the screw whereby the assembly is separablefrom the sleeve only when the clamp plate is moved in a clampingdirection and beyond the normal clamping position of the clamp plate.

5. In a battery terminal connecter, wherein a sleeve is adapted formounting on the post of a battery, and wherein a bolt, nut andclampplate assembly is removably attached to the sleeve, means-to preventaccidental separation of the assembly and, sleeve including. aninterlocking connection therebetween. constructed and arranged toprevent separation when the screw isfnoved to clamping positibn as inservice and retracted position for separation of the sleeve from thepost, the interlocking connection being efiective for separation of theassembly and

